Water quality Cod online analyzer: used for monitoring industrial wastewater discharge, controlling pollution levels to help enterprises achieve emission standards. [Model: TH-ZS1S, IoT integrated device, customized service supported by Yunjing Tianhe]The complexity of industrial wastewater discharge and the strictness of environmental supervision make chemical oxygen demand (COD) a core indicator for evaluating the degree of water pollution. The COD value directly reflects the total amount of organic pollutants in wastewater. Its excessive discharge not only disrupts the ecological balance of water bodies, but also may trigger chain reactions such as eutrophication and deterioration of water quality, threatening the surrounding environment and residents' health. Traditional manual sampling and testing, due to their low frequency and poor timeliness, are difficult to capture the instantaneous fluctuations of wastewater discharge, which can easily lead to environmental penalties for enterprises that exceed the standard of discharge. The deployment of online COD analyzer for water quality provides a real-time and accurate solution for monitoring industrial wastewater discharge. This device uses high-precision sensors and intelligent algorithms to continuously monitor the COD concentration in wastewater 24 hours a day. The data is uploaded to the management platform in real time, and once it exceeds the standard, an alarm mechanism is immediately triggered to help enterprises adjust their treatment processes in a timely manner and avoid the spread of pollutants. From petrochemicals and pharmaceuticals to printing and dyeing, food processing, its anti-interference design and wide range can adapt to the characteristics of wastewater in different industries, becoming a "smart goalkeeper" for enterprises to achieve environmental compliance and reduce operational risks.

1、 Product Introduction
Online water quality analyzer is an instrument that can monitor water quality COD online, and can quickly and accurately record key parameters in water bodies. At the same time, the instrument supports the expansion of water quality multi parameter sensors, which can be combined and configured according to different needs and applications, record and store historical monitoring data and alarm history records, and support the export of historical data. The RS485 interface supports the MODBUS-RTU communication protocol, making it convenient for users to communicate freely. It can connect and transmit data with devices such as PLC, DCS, configuration software, DTU, etc.

2、 Application Fields

Online multi parameter water quality detectors are widely used for monitoring various water bodies, including but not limited to the following fields:

1. Waterworks: used to monitor the pH value, dissolved oxygen, turbidity and other parameters of tap water, ensuring the safety and hygiene of tap water.

2. Groundwater monitoring: used to monitor parameters such as pH value, conductivity, temperature, etc. of groundwater, in order to timely detect and solve water quality problems.

3. River and lake monitoring: used to monitor the water quality of rivers and lakes, such as dissolved oxygen, turbidity, ammonia nitrogen and other parameters, in order to take timely pollution control measures.

4. Ocean monitoring: used to monitor the water quality of the ocean, such as salinity, dissolved oxygen, temperature and other parameters, in order to timely detect and control marine pollution.

5. Wastewater treatment: used to monitor the water quality parameters of wastewater, such as pH value COD、 Ammonia nitrogen and other substances are used to control and regulate the sewage treatment process.

6. Industrial production: used to monitor the water quality status in the industrial production process, such as pH, conductivity, dissolved oxygen and other parameters, in order to adjust the process in a timely manner and ensure product quality.

7. Scientific research: used for water quality monitoring in the field of scientific research, such as eutrophication of lakes, climate change, and other studies.

3、 Product Features

1. High reliability: suitable for long-term work in outdoor environments, with stable measurement and strong anti-interference ability.

2. Flexible and portable: Each probe can be freely combined and replaced independently, plug and play.

3. Scalability: Multiple sensors can be freely combined.

4. Multiple applications: rapid on-site measurement, emergency monitoring, or long-term online monitoring of groundwater, river water, lake water sources, and urban pipeline water.

5. Resilient shell: ABS+PC material, corrosion-resistant, capable of long-term continuous normal operation.

6. Compact structure: can be installed in smaller sizes.

7. Communication connection: RS485 expansion interface, isolated master/slave interface for independent communication.

4、 Technical parameters of multi parameter water quality analyzer

5、 Sensor parameters